dangerous curiousity

sdyney was emptying out the diaper bag, like she often does, and started playing with my keys. She went around sticking them at all the doorknobs in the apartment, even the bathroom and bedroom which have no keyholes. She goes into the bedroom and I hear her playing with the keys while I am filling out some paperwork in the living room. I hear the keys drop and an 'oh no.' I think to myself, great, she has probably dropped the keys on Elijah who was sleeping in the pack 'n play. She comes out, 'oh no,' she reiterates. Ok, I'm coming to rescue Elijah, I think. I glance in the crib, no keys. Then I think, oh, even better, she dropped them down into the radiator.
But, instead, Sydney points over to a wall, and my gut drops and I felt sick. The keys are laying below an eletrical outlet and the outlet has a black burn mark on it.
I grabbed Sydney up to see if she was ok. Other than being a little scared, she seemed ok. I called our clinic and got their advice (basically watch her behavior since there seemed to be no external damage) and thought of what could have happened over and over.
God knows I need my sassy little girl. I don't know what I would do without her.
My next response was to put an outlet cover on all the remaining outlets (her room was already covered up, but only a few in the rest of the apartment were).






Looking at the outlet later on, I realized that the burn mark was on the screwhead above the outlet. I don't know exactly what happened, but it seems like she was trying to turn the screw with my key and somehow that sparked. still a little freaked out.